40799779 has 8 divisors (see below), whose sum is σ = 43344288. Its totient is φ = 38271360.

The previous prime is 40799777. The next prime is 40799809. The reversal of 40799779 is 97799704.

40799779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40799779 - 2¹ = 40799777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40799777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429 + ... + 9145.

It is an arithmetic number, because the mean of its divisors is an integer number (5418036).

Almost surely, 2^40799779 is an apocalyptic number.

40799779 is a deficient number, since it is larger than the sum of its proper divisors (2544509).

40799779 is a wasteful number, since it uses less digits than its factorization.

40799779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8045.

The product of its (nonzero) digits is 1000188, while the sum is 52.

The square root of 40799779 is about 6387.4704695991. The cubic root of 40799779 is about 344.2595025634.

The spelling of 40799779 in words is "forty million, seven hundred ninety-nine thousand, seven hundred seventy-nine".